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Finding the Fourth Proportional to 98,384.40, 147,560.76 and 28,247.76

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Solution

The fourth proportional to 98,384.40, 147,560.76 and 28,247.76 is: 42,367.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,384.40 : 147,560.76 = 28,247.76 : x
  2. Step 2: Convert to fraction form
    98,384.40/147,560.76 = 28,247.76/x
  3. Step 3: Cross multiply
    98,384.40x = 147,560.76 × 28,247.76
  4. Step 4: Simplify right side
    98,384.40x = 4,168,260,933.90
  5. Step 5: Solve for x
    x = 4,168,260,933.90/98,384.40
  6. Step 6: Final answer
    x = 42,367.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.